Add 5/70 and 42/20
1st number: 5/70, 2nd number: 2 2/20
5/70 + 42/20 is 76/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
5/70 = 5 × 2/70 × 2 = 10/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
42/20 = 42 × 7/20 × 7 = 294/140 - Add the two like fractions:
10/140 + 294/140 = 10 + 294/140 = 304/140 - 304/140 simplified gives 76/35
- So, 5/70 + 42/20 = 76/35
In mixed form: 26/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/70+42/20 5/70+84/20 5/70+42/40 15/70+42/20 5/70+42/60 25/70+42/20 35/70+42/20